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Add --oversample test for hocr rendering

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James R. Barlow
2015-07-27 17:18:02 -07:00
parent 7bcd48c269
commit b40eec4cb0
4 changed files with 162 additions and 360 deletions
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230
flowchart.svg
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@@ -1,230 +0,0 @@
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Side by Side

Before

Width:  |  Height:  |  Size: 15 KiB

6
ocrmypdf/main.py
View File

@@ -162,6 +162,8 @@ if _argv[0].startswith('python'):
_argv = _argv[1:]
if _argv[0].endswith('.py'):
_argv = _argv[1:]
if _argv[0].startswith('ocrmypdf'):
_argv = _argv[1:]
options = parser.parse_args(_argv)
@@ -576,7 +578,7 @@ def render_hocr_page(
image = next(ii for ii in infiles if ii.endswith('.image'))
pageinfo = get_pageinfo(image, pdfinfo, pdfinfo_lock)
dpi = round(max(pageinfo['xres'], pageinfo['yres']))
dpi = round(max(pageinfo['xres'], pageinfo['yres'], options.oversample))
hocrtransform = HocrTransform(hocr, dpi)
hocrtransform.to_pdf(output_file, imageFileName=image,
@@ -600,7 +602,7 @@ def render_hocr_debug_page(
image = next(ii for ii in infiles if ii.endswith('.image'))
pageinfo = get_pageinfo(image, pdfinfo, pdfinfo_lock)
dpi = round(max(pageinfo['xres'], pageinfo['yres']))
dpi = round(max(pageinfo['xres'], pageinfo['yres'], options.oversample))
hocrtransform = HocrTransform(hocr, dpi)
hocrtransform.to_pdf(output_file, imageFileName=None,

274
pipeline.svg
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12
tests/test_main.py
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@@ -114,3 +114,15 @@ def test_metadata():
assert pdfinfo['Author'] == '孔子'
assert pdfinfo['Subject'] == 'U+1030C is: 𐌌'
assert pdfinfo.get('Keywords', '') == ''
def test_oversample():
oversampled_pdf = run_ocrmypdf(
'skew.pdf', 'test-oversample.pdf', '--oversample', '300')
from ocrmypdf.pageinfo import pdf_get_all_pageinfo
pdfinfo = pdf_get_all_pageinfo(oversampled_pdf)
print(pdfinfo[0]['xres'])
assert abs(pdfinfo[0]['xres'] - 300) < 1